DE1280625B - Verfahren zum Aufbringen eines Oxalatueberzugs auf Metallen - Google Patents

Verfahren zum Aufbringen eines Oxalatueberzugs auf Metallen

Info

Publication number
DE1280625B
DE1280625B DE1966M0069098 DEM0069098A DE1280625B DE 1280625 B DE1280625 B DE 1280625B DE 1966M0069098 DE1966M0069098 DE 1966M0069098 DE M0069098 A DEM0069098 A DE M0069098A DE 1280625 B DE1280625 B DE 1280625B
Authority
DE
Germany
Prior art keywords
oxalic acid
citric acid
solution
acid
metals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1966M0069098
Other languages
German (de)
English (en)
Inventor
Dennis Brian Freeman
Colm Anthony Gill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of DE1280625B publication Critical patent/DE1280625B/de
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/46Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing oxalates

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
DE1966M0069098 1965-04-26 1966-04-09 Verfahren zum Aufbringen eines Oxalatueberzugs auf Metallen Withdrawn DE1280625B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1750765A GB1072724A (en) 1965-04-26 1965-04-26 Improvements in the coating of metal surfaces

Publications (1)

Publication Number Publication Date
DE1280625B true DE1280625B (de) 1968-10-17

Family

ID=10096400

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1966M0069098 Withdrawn DE1280625B (de) 1965-04-26 1966-04-09 Verfahren zum Aufbringen eines Oxalatueberzugs auf Metallen

Country Status (5)

Country Link
AT (1) AT257322B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE678997A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1280625B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1072724A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE323262B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
SE323262B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-04-27
GB1072724A (en) 1967-06-21
AT257322B (de) 1967-10-10
BE678997A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-09-16

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee